*Title: New object attribute function "view_count" for eZContentObjectTreeNode.

*Description:

This new function fetches the amount of the recorded views of a node.

*Documentation:

Fetching of related objects:

{def $node = fetch( 'content', 'node',
        hash( 'node_id', 2 ) }
Views: {$node.view_count}


Returns:
An integer representing the number of views of this node.
